NOPE
Absolutely NOPE.
I find spiders and they bio-mechanics interesting, I'm even thinking about how to build a giant spider-bot based on that (A project I dubbed Project Nightmare Fuel). But this is just pure unadulterated NOPE. I really don't see the use for something like this. It's not as if we're ever going to breed and kill spiders on an industrial scale to make robot end effectors, nor do I see a dead spider lasting all that long in long term use in that application.